From time to time there are discussions about the relevance of exercise, as opposed to diet, in the context of various issues raised in the forum. I attach a link which includes an interesting statement about the effect of regular exercise on insulin sensitivity:
http://www.pantheonmedicine.com/articles/?p=11
"There is good data to suggest that moderate intensity exercise (50% of VO2max) with bouts of high intensity exercise (75% of VO2max) improves insulin-stimulated glucose disposal in a significant way. This has been demonstrated in both short-term and long-term studies with a variety of populations (young, old, obese, athletes, subjects with normal and impaired glucose tolerance, and frank type 2 diabetes). For instance one study observed the effect of exercise in the offspring of parents with non-insulin-dependent diabetes mellitus. It showed that exercise increases insulin sensitivity in both normal subjects and the insulin-resistant offspring of diabetic parents secondary to a twofold increase in insulin-stimulated glycogen synthesis in muscle, due to an increase in insulin-stimulated glucose transport phosphorylation. Improvements in glucose disposal with exercise have been shown to be independent of initial body mass and age. These improvements are lost 60-72 hours after the last exercise session and therefore it is better to exercise daily."
David
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